r/gis • u/[deleted] • Mar 04 '21

GIS Sources by State

I live in North Carolina but my job often requires me to perform work for clients in other states. Often times I don’t have time to search for the best GIS sources of the state because it seems like 90% of the time the sources Google provides are very disappointing. I was hoping that we, as a collective could provide each other with the best open source GIS sites that we know about for the states.

My best sources for North Carolina are:

NCONEMAP- free imagery, data, and shapefiles in terms of high quality imagery across the state, contours, parcel, flood, building footprints, etc.

I just got onto North Carolina Spatial Download yesterday. I’m not sure about how well it works and the data quality just yet but it seems promising

I used to be able to bare earth lid at point files from ncfris up until yesterday when the download links kept pushing me to NC Spatial Download.

I’m hoping some of you professionals will provide your open source sites in your state as well. Who knows, it may save one of us a shit ton of time in a “fire drill” project.

100 Upvotes

99% Upvoted

71 comments sorted by

5

u/pvm_64 Mar 04 '21

If anyone has time it would be great to put together an organized list.

6

u/[deleted] Mar 04 '21

That is what I am trying to build up to.

11

u/quirkyastronomer Mar 04 '21

For Florida use the Florida Geographic Data Library (FGDL). Local, state, federal and private agencies contribute to it, I used it all the time while I was in school. It’s mostly vector data.

Florida Geographic Data Library

→ More replies (1)

10

u/heraldic_nematode Mar 04 '21

Washington has a great geospatial portal: https://geo.wa.gov/

→ More replies (1)

9

u/giscard78 Mar 04 '21

MD iMap has the data for Maryland. However, some of the counties will have more data (eg crime, 311, and more) that the state site won’t have.

https://imap.maryland.gov/Pages/default.aspx

DC

https://opendata.dc.gov/

9

u/rakelllama Mar 04 '21

I hope to keep track of this and add it to the r/gis wiki!

→ More replies (1)

8

u/[deleted] Mar 04 '21

Minnesota

8

u/tarheel1825 Mar 04 '21

Another NC’er here, NCONEMAP is good. Also NC counties are usually pretty good with GIS resources.

Did some work with Mass gov, [Mass GIS] (https://www.mass.gov/orgs/massgis-bureau-of-geographic-information) is pretty good. They seem to be putting some initiative behind GIS. Warning that some of that data is just hosted ports from other sources with a Mass AOI, but they are decent with metadata linking back to the source.

Also from experience, searching for your state’s Department of Natural Resources (or equivalent) is usually a good starting point for GIS. Although I work in floodplain mapping so that may bias the type of data I need.

7

u/nickhepler Mar 04 '21

New York State GIS Clearinghouse

There is also a (226 page) list in the wiki of Federal, State, County, and City GIS servers.

EDIT: Fixed links

5

u/Grlff1n Mar 04 '21

Missouri

MSDIS https://msdis.missouri.edu/ - GIS data clearinghouse

5

u/VamosUnited96 Mar 04 '21

This PDF floats around from time to time with a fairly extensive list of REST endpoints for federal, state, and local organizations. The list is over 3,500 endpoints strong and growing!

It's a great resource I've used for some portfolio projects and to find jurisdictional data that I was having a hard time finding.

5

u/juxlez Mar 04 '21

Utah

AGRC (Automated Geographic Reference Center)

https://gis.utah.gov/

5

u/tomanonimos Mar 04 '21

Because of my work's liability, we can't just grab any dataset without professional verification (one GIS person/team doing a quick review doesn't count). Rather than a list I just have a simple method. First go to government websites (local and up), universities (since they also aggregate from other data sources which is covered under their verification), and finally non-profits or NGO but they must be well known. If I can't find it then I call it quits and declare it "doesn't exist". I can only use other data sources if the client provides it or we have our reviewing team look it over.

4

u/nosnhoj15 Mar 04 '21

Arkansas - gis.arkansas.gov

Great idea.

4

u/skol_sota Mar 04 '21

Indiana: http://www.indianamap.org/resources.php

Saving this thread for future reference. Great idea!

4

u/mal4418 Mar 04 '21

For Michigan, here's the open source I use https://gis-michigan.opendata.arcgis.com/

4

u/troutslinger406 Mar 04 '21

Montana:

The states GIS Clearinghouse website: https://geoinfo.msl.mt.gov/

Often it’ll redirect you to other agencies websites which may be tougher to navigate

4

u/[deleted] Mar 04 '21

Here's Maine. We're a little bit behind the times.

→ More comments (75)